

The Wide-Body Semi-High-Roof Cab Air Deflector is an advanced aerodynamic system designed to improve fuel efficiency and reduce wind noise on the Sitrak C7H heavy truck.
This Wide-Body Semi-High-Roof Cab Air Deflector kit includes a complete set of aerodynamic components, including the main deflector, side wings, guide rails, mounting brackets, and all necessary fastening hardware for a comprehensive installation.
Engineered specifically for the wide‑body semi‑high‑roof cab, the Wide-Body Semi-High-Roof Cab Air Deflector optimises airflow over the vehicle, reducing drag and improving stability at highway speeds.
For detailed fitment and compatibility information, please refer to the Sinotruk Catalog.
This Wide-Body Semi-High-Roof Cab Air Deflector is a genuine OEM‑grade solution, ensuring perfect fitment and long‑term durability for your Sitrak C7H, and is available for immediate worldwide delivery.
The Top deflector assembly is the main aerodynamic component of the Wide-Body Semi-High-Roof Cab Air Deflector system. It is designed to smoothly redirect airflow over the cab roof, significantly reducing wind resistance and improving fuel economy.
Manufactured from high‑impact composite material with a UV‑stable finish, this component maintains its structural integrity and appearance even after years of exposure to harsh weather conditions. Its precise shape is the result of extensive wind tunnel testing, ensuring optimal aerodynamic performance for the Wide-Body Semi-High-Roof Cab Air Deflector.
The Right fixed rail assembly is a precision‑formed track that supports the side deflector on the passenger side. This Wide-Body Semi-High-Roof Cab Air Deflector component is made from extruded aluminium with a corrosion‑resistant anodised finish, providing a durable and lightweight mounting base.
Its design is symmetrically matched to the left rail, ensuring balanced support and consistent installation geometry. The rail includes pre‑drilled mounting holes and integrated slots for secure attachment of the side deflector panels.
The Left fixed rail assembly is the driver‑side counterpart, providing identical support and functionality. This Wide-Body Semi-High-Roof Cab Air Deflector component is manufactured to the same high standards as the right rail, with the same anodised aluminium construction and precision machining.
Its symmetrical design ensures uniform mounting and alignment, simplifying installation and guaranteeing that the side deflectors sit perfectly parallel to the cab body.
This assembly combines a hexagon socket head cap screw with a spring washer and a flat washer, providing a complete fastening solution for the Wide-Body Semi-High-Roof Cab Air Deflector. The spring washer prevents loosening under vibration, while the flat washer distributes the clamping load evenly.
Made from grade 8.8 steel with a zinc‑plated finish, these fasteners offer excellent corrosion resistance and tensile strength. The socket head design allows for secure tightening with a standard hex key.
This is a standard hexagon socket head cap screw used for securing various components of the Wide-Body Semi-High-Roof Cab Air Deflector system. It is designed for high‑strength applications where a low‑profile head is required.
The screw is made from alloy steel and features a black oxide finish for corrosion resistance. Its recessed socket drive prevents cam‑out and allows for precise torque application.
The Bushing is a cylindrical spacer that provides proper clearance and alignment between the deflector panels and the mounting rails. This Wide-Body Semi-High-Roof Cab Air Deflector component is made from durable nylon, offering excellent wear resistance and vibration damping.
Its precise dimensions ensure that the deflector is positioned correctly relative to the cab surface, preventing contact and reducing noise. The bushing also acts as a protective barrier, preventing metal‑to‑metal contact.
The Large washer is a flat ring with an enlarged outer diameter, designed to distribute the clamping load over a wider area. This Wide-Body Semi-High-Roof Cab Air Deflector component is used under bolt heads and nuts to prevent damage to the plastic deflector panels and to ensure even pressure distribution.
Made from hardened steel with a zinc‑plated finish, the large washer provides a smooth bearing surface and resists deformation under high clamping forces.
The 2 type full metal Hex locking nut is a prevailing‑torque nut that provides a secure, vibration‑resistant fastening. This Wide-Body Semi-High-Roof Cab Air Deflector component is made entirely of metal, ensuring reliable locking action even in high‑temperature environments.
Its all‑metal construction eliminates the risk of plastic degradation that can occur with nylon‑insert nuts, making it ideal for under‑hood and exterior applications where heat and UV exposure are factors.
The Left wing deflector assembly is the driver‑side side fairing that complements the main top deflector. This Wide-Body Semi-High-Roof Cab Air Deflector component is shaped to smoothly channel airflow around the cab corners, reducing turbulence and drag.
Constructed from the same high‑impact composite material as the top deflector, it features a sleek, aerodynamic profile and is finished with a durable automotive‑grade paint that matches the cab colour.
The Right wing deflector assembly is the passenger‑side counterpart, providing symmetrical aerodynamic benefits. This Wide-Body Semi-High-Roof Cab Air Deflector component is identical in construction and material to the left wing, ensuring balanced performance and appearance.
Its installation mirrors the left side, and together the two wing deflectors complete the aerodynamic package, significantly improving the vehicle’s overall drag coefficient.
The 2 type non-metallic insert Hex locking nut features a nylon locking element that provides a secure, vibration‑resistant fastening. This Wide-Body Semi-High-Roof Cab Air Deflector component is ideal for applications where a prevailing‑torque nut is required.
The nylon insert ensures that the nut remains tight even under extreme vibration, while the standard hex shape allows for easy installation with common tools.
The Fixed bracket is a robust metal support that reinforces the mounting of the deflector system to the cab roof. This Wide-Body Semi-High-Roof Cab Air Deflector component is fabricated from heavy‑gauge steel with a powder‑coated finish for maximum strength and corrosion protection.
Its design incorporates multiple mounting points and is pre‑drilled to match the cab’s existing mounting holes, simplifying installation and ensuring a secure fit.
The Blind rivet nut is a one‑sided threaded insert that provides a strong anchor point in thin sheet metal. This Wide-Body Semi-High-Roof Cab Air Deflector component is used to create threads in areas where access is only available from one side.
Made from carbon steel with a zinc‑plated finish, the blind rivet nut offers excellent pull‑out resistance and is installed using a standard rivet nut tool, making it a convenient solution for attaching brackets and supports.
The Left deflector assembly is a secondary aerodynamic panel that extends from the main top deflector on the driver side. This Wide-Body Semi-High-Roof Cab Air Deflector component works in conjunction with the left wing deflector to provide comprehensive air management.
Its design is optimised to reduce drag and improve stability, particularly when the vehicle is travelling at higher speeds. The deflector is made from the same durable composite material as the other aerodynamic components.
The Rubber pad is a vibration‑damping element placed between the deflector mounting surfaces and the cab roof. This Wide-Body Semi-High-Roof Cab Air Deflector component prevents metal‑to‑metal contact, reducing noise and protecting the painted surfaces from scratches.
Made from EPDM rubber, it is resistant to weathering, ozone, and temperature extremes, ensuring long‑lasting performance and maintaining a secure, rattle‑free installation.
The Right deflector assembly is the passenger‑side counterpart to the left deflector, completing the aerodynamic package. This Wide-Body Semi-High-Roof Cab Air Deflector component is designed to mirror the left side, ensuring balanced airflow management and visual symmetry.
Together with the left deflector, it forms a cohesive system that effectively reduces drag and enhances the vehicle’s overall stability and fuel efficiency.
The Lower left support rod is a structural strut that reinforces the left side of the deflector system. This Wide-Body Semi-High-Roof Cab Air Deflector component is made from aluminium tubing with a corrosion‑resistant anodised finish, providing lightweight strength.
Its adjustable design allows for fine‑tuning of the deflector angle, ensuring optimal aerodynamic performance. The support rod connects the side deflector to the cab, providing additional rigidity and stability at high speeds.
The Sleeve is a tubular spacer used to maintain correct alignment and spacing between components of the Wide-Body Semi-High-Roof Cab Air Deflector. This component is made from stainless steel, offering excellent corrosion resistance and long‑term durability.
Its precise length ensures that the fasteners are correctly torqued without over‑compressing the deflector panels, and it provides a neat, professional finish to the installation.
| NO. | Part NO. | Name |
|---|---|---|
| 1 | 811-62910-6166 | Top deflector assembly |
| 2 | 810W62910-5206 | Right fixed rail assembly (symmetric with left) |
| 3 | 810W62910-5207 | Left fixed rail assembly |
| 4 | AZ9003921806 | Hexagon socket head cap screw, spring washer and flat washer assembly |
| 5 | Q218B0870F31 | Hexagon socket head cap screw |
| 6 | 810W93001-0192 | Bushing |
| 7 | Q218B0880F31 | Hexagon socket head cap screw |
| 8 | 810W93001-0418 | Bushing |
| 9 | Q40208F31 | Large washer |
| 10 | Q33208F31 | 2 type full metal Hex locking nut |
| 11 | 811-62910-6171 | Left wing deflector assembly |
| 12 | 811-62910-6172 | Right wing deflector assembly |
| 13 | Q218B0825F31 | Hexagon socket head cap screw |
| 14 | Q32608F31 | 2 type non-metallic insert Hex locking nut |
| 15 | 810W62910-5184 | Fixed bracket |
| 16 | MQ6W13169-0022 | Blind rivet nut |
| 17 | 811-62910-6156 | Left deflector assembly |
| 18 | 712W96101-4001 | Rubber pad |
| 19 | 812-62910-6102 | Right deflector assembly |
| 20 | Q218B0820F31 | Hexagon socket head cap screw |
| 21 | 712W62910-0218 | Lower left support rod |
| 22 | 810W93021-0384 | Sleeve |
Our Wide-Body Semi-High-Roof Cab Air Deflector has been developed through extensive wind tunnel testing to deliver significant drag reduction. By smoothing the airflow over the cab, this system helps reduce fuel consumption and improve overall vehicle stability, especially at motorway speeds.
The Wide-Body Semi-High-Roof Cab Air Deflector is a proven solution for operators looking to enhance their vehicle’s efficiency without compromising on style or durability.
All components of the Wide-Body Semi-High-Roof Cab Air Deflector are manufactured from high‑grade materials, including impact‑resistant composite, anodised aluminium, and stainless steel fasteners. This ensures that the Wide-Body Semi-High-Roof Cab Air Deflector maintains its appearance and functionality for years, even in the most demanding conditions.
The Wide-Body Semi-High-Roof Cab Air Deflector kit includes every component needed for a full installation, from the main deflector and side wings to all brackets, rails, fasteners, and bushings. This comprehensive package eliminates the need for additional parts and simplifies the installation process, making it accessible for both professional workshops and experienced DIY enthusiasts.
We maintain a large inventory of Wide-Body Semi-High-Roof Cab Air Deflector kits to ensure fast delivery to customers worldwide, with prompt shipping and real‑time tracking. Our technical support team is available to assist with any installation queries, ensuring a smooth experience.
The Wide-Body Semi-High-Roof Cab Air Deflector is not just an aesthetic addition; it is a functional component that directly impacts the vehicle’s operating costs. By reducing aerodynamic drag, the Wide-Body Semi-High-Roof Cab Air Deflector helps lower fuel consumption, which is particularly beneficial for long‑haul fleets where every percentage point of efficiency matters.
Furthermore, the improved airflow reduces wind noise, creating a quieter and more comfortable cabin environment for the driver. The Wide-Body Semi-High-Roof Cab Air Deflector is a smart investment for any operator looking to maximise their vehicle’s performance and reduce environmental impact.
The Wide-Body Semi-High-Roof Cab Air Deflector is engineered to withstand the harshest environmental conditions. The composite material used in the deflector panels is UV‑stabilised to prevent fading and cracking, while the anodised aluminium rails and stainless steel fasteners offer excellent corrosion resistance.
This robust construction ensures that the Wide-Body Semi-High-Roof Cab Air Deflector maintains its structural integrity and appearance even after years of exposure to sun, rain, road salt, and temperature extremes. Regular inspection and cleaning of the Wide-Body Semi-High-Roof Cab Air Deflector will help preserve its performance and extend its service life.
When installing the Wide-Body Semi-High-Roof Cab Air Deflector, begin by assembling the fixed rails to the cab roof using the provided hexagon socket head cap screws and large washers. Ensure the rails are properly aligned before tightening the fasteners.
Next, attach the top deflector assembly and the side wing deflectors, using the bushings and sleeves to maintain correct spacing. Secure all components with the appropriate locking nuts and torque them to the specified values. Finally, install the support rod and check the overall alignment of the Wide-Body Semi-High-Roof Cab Air Deflector to ensure optimal aerodynamic performance.
To keep your Wide-Body Semi-High-Roof Cab Air Deflector in optimal condition, regularly wash the deflector panels with mild soap and water to remove road grime and insect residues. Avoid using abrasive cleaners or high‑pressure washers that could damage the surface finish.
Inspect the mounting bolts and locking nuts periodically to ensure they remain tight, and check the rubber pad for signs of wear or deterioration. If any component of the Wide-Body Semi-High-Roof Cab Air Deflector shows signs of damage, replace it promptly to maintain the system’s effectiveness and safety.
This Wide-Body Semi-High-Roof Cab Air Deflector is specifically designed for the wide‑body semi‑high‑roof cab of the Sitrak C7H, fitting both left‑hand and right‑hand drive configurations. It is not compatible with standard‑height or narrow‑body cabs.
The mounting points and geometry of the Wide-Body Semi-High-Roof Cab Air Deflector are precisely matched to the C7H cab, ensuring a seamless fit and easy installation. Verify your vehicle’s specifications before ordering to ensure full compatibility with the Wide-Body Semi-High-Roof Cab Air Deflector.
Each component of the Wide-Body Semi-High-Roof Cab Air Deflector undergoes rigorous quality control, including dimensional checks, material verification, and aerodynamic performance testing. We simulate real‑world conditions to ensure that the deflector system delivers the promised fuel savings and noise reduction.
Our commitment to quality is reflected in the comprehensive warranty offered with every Wide-Body Semi-High-Roof Cab Air Deflector kit, giving you confidence in your purchase.
We keep a large stock of Wide-Body Semi-High-Roof Cab Air Deflector kits to ensure immediate dispatch. Orders are typically processed within 24 hours, and tracking information is provided for every shipment. Our global logistics network ensures that your Wide-Body Semi-High-Roof Cab Air Deflector arrives quickly, minimising vehicle downtime.
Installing the Wide-Body Semi-High-Roof Cab Air Deflector is a cost‑effective way to reduce fuel costs and improve the overall efficiency of your fleet. The fuel savings achieved through reduced drag can offset the initial investment in a relatively short period, making the Wide-Body Semi-High-Roof Cab Air Deflector a smart financial decision for any transport operation.
Aftermarket air deflectors often use inferior materials and imprecise designs that fail to deliver the advertised aerodynamic benefits. Our Wide-Body Semi-High-Roof Cab Air Deflector is manufactured to the same standards as the original equipment, ensuring consistent performance and durability.
By choosing our genuine Wide-Body Semi-High-Roof Cab Air Deflector, you invest in a product that has been engineered specifically for your Sitrak C7H, guaranteeing optimal fitment and maximum aerodynamic efficiency.
The Wide-Body Semi-High-Roof Cab Air Deflector is designed to meet all relevant safety and regulatory standards. The secure mounting system ensures that the deflector remains firmly attached at all times, and the materials used are flame‑retardant and compliant with automotive interior safety requirements.
Regular inspection of the Wide-Body Semi-High-Roof Cab Air Deflector is recommended to ensure continued compliance with safety regulations.
The Wide-Body Semi-High-Roof Cab Air Deflector is produced using advanced composite moulding and CNC machining processes, ensuring precise dimensions and consistent quality. The aerodynamic profile is achieved through careful design and validation using computational fluid dynamics (CFD) simulations.
This modern manufacturing approach guarantees that every Wide-Body Semi-High-Roof Cab Air Deflector delivers the same high performance as the original prototype, providing reliable and predictable aerodynamic benefits.
In addition to its functional benefits, the Wide-Body Semi-High-Roof Cab Air Deflector gives the vehicle a distinctive, professional appearance. The sleek design and colour‑matched finish enhance the overall look of the cab, potentially increasing the truck’s resale value.
A well‑presented vehicle with aerodynamic upgrades like the Wide-Body Semi-High-Roof Cab Air Deflector signals a commitment to quality and efficiency, which can be a positive factor in the used truck market.
We are committed to providing the highest quality Wide-Body Semi-High-Roof Cab Air Deflector and supporting our customers with responsive service. If you have any questions or encounter any issues, our team is ready to assist. Your satisfaction is our priority, and we strive to exceed your expectations with every order of the Wide-Body Semi-High-Roof Cab Air Deflector.
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